The SRT to SSA lets you convert SRT to SubStation Alpha (SSA) directly in your web browser. Your file is processed on your device and never uploaded, so it stays completely private. It's free, needs no sign-up and works on any device.
How to use the SRT to SSA
- Upload your file to the SRT to SSA.
- Choose any options shown.
- Click Convert.
- Download the converted file instantly.
Why use this tool?
- 100% private — your files are processed on your device and never uploaded.
- Free & unlimited — no sign-up, no watermarks, no daily caps.
- Works everywhere — any modern browser on desktop, tablet or phone.
- Fast — no waiting for uploads or downloads from a server.
Also known as
srt to ssa, srt to ssa online, srt to ssa free, free srt to ssa.
Frequently asked questions
Is the SRT to SSA free?
Yes. Every DigiToolkit media tool is completely free, with no sign-up and no watermarks.
Are my files uploaded to a server?
No. The srt to ssa runs entirely in your browser. Your files never leave your device, which keeps them private.
Do I need to install anything?
No. The srt to ssa works in any modern browser on desktop or mobile — nothing to download or install.
Which subtitle formats are supported?
SubRip (.srt), WebVTT (.vtt), Advanced SubStation Alpha (.ass) and SubStation Alpha (.ssa), plus plain text (.txt).
Will my timings stay accurate?
Yes. Timestamps are parsed precisely to the millisecond and converted without rounding errors.
Does it work on mobile?
Yes, it is mobile-friendly and works on phones, tablets and desktops.